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H18.712

Billable

Corneal ectasia, left eye

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A condition where the cornea of the left eye becomes abnormally thin and bulges outward, causing a cone-like protrusion.

Coding Tips

  • •Ectasia indicates corneal thinning with outward bulging; distinguish from keratoconus which is a specific type of ectasia
  • •Ensure documentation clearly identifies the left eye and confirms ectasia rather than other corneal deformities

Code Hierarchy

└H18Other disorders of cornea└H18.7Other and unspecified corneal deformities└H18.71Corneal ectasia└H18.712Corneal ectasia, left eye
└H18.712Corneal ectasia, left eye

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